Abstract: An electrical connector assembly may include a connector body having a conductor receiving end, a connector end, a linking assembly connecting the conductor receiving end to the connector end, and a visible open port positioned in the connector body for viewing at least a portion of the linking assembly. The linking assembly may include a rearward conductive end conductively coupled to the conductor receiving end, a flexible conductor conductively coupled to the connector end, and a linking pin coupled to the flexible conductor and movable between a first position and a second position. The first position maintains the conductor receiving end electrically isolated from the connector end, and the second position conductively couples the conductor receiving end to the connector end.

Abstract: A cable clamp for securing a wire or cable in an electrical outlet box having an interior, an exterior and one or more openings therebetween is provided. The cable clamp includes a body and one or more retaining devices that define one or more apertures. The body is adapted to mount in one of the one or more openings in the electrical outlet box and each of the one or more apertures is adapted to provide a passage for a wire or cable between the interior and exterior of the electrical outlet box. The one or more retaining devices are connected to the body and each of the one or more retaining devices is adapted to secure a wire or cable in one of the one or more apertures.

Abstract: A radiant tube heater with a burner assembly, a radiant tube assembly and a combustion air pre-heater; wherein the burner assembly comprises: a burner fuel nozzle; a plenum chamber and a pre-mixer chamber; the plenum chamber having a combustion air inlet; wherein in use: combustion air flows from said plenum chamber through an orifice to said pre-mixer where said air is mixed with burner fuel entering said pre-mixer through said nozzle prior to being combusted at a burner head; said pre-mixer being at least partly located within said radiant tube assembly; and where in use at least part of the combustion air supplied to said plenum is preheated in said air pre-heater using residual sensible heat of the hot combustion gas products of the heater.

Abstract: An electrical connector assembly may include a connector body having a conductor receiving end, a first link interface, a second link interface, a first connector end, and a visible open port between the first link interface and the second link interface. The first link interface may be conductively coupled to the conductor receiving end and the second link interface may be spaced axially from the first link interface and conductively coupled to the first connector end. The first link interface and the second link interface are configured to receive a link assembly therein. An insulative material may be positioned within the connector body axially between the first link interface and the second link interface. At least a portion of the insulative material may be visible through the visible open port.

Abstract: An electrical connector feedthru insert assembly may include a connector body having a first leg projecting from the body in a first direction and second and third legs projecting from the body in a second direction substantially opposing the first direction. The first leg may be configured for insertion into a bushing well in a transformer, the bushing well including a conductive stud therein. The first leg may include a longitudinal bore extending therethrough configured for alignment with the conductive stud in the bushing well upon insertion of the first leg into the bushing well, the longitudinal bore having a bolt passage portion and a first shoulder portion. The feedthru insert assembly may further include a bolt sized for insertion into the longitudinal bore and including a tool engagement shoulder portion to engage the first shoulder portion of the longitudinal bore. Application of rotational force to the tool engagement shoulder portion may cause the bolt to threadingly engage the conductive stud.

Abstract: An electrical outlet box assembly includes an electrical outlet box and a cable protector. The outlet box includes a box interior for accommodating an electrical fixture and an electrical cable terminated to the fixture. The outlet box includes a mounting tab having a threaded aperture therethrough. The mounting screws are insertable through the aperture of the mounting tab. The cable protector is positioned adjacent the mounting tab for separating the mounting screw from the interior of the box for preventing contact between the mounting screw and the cable terminated therein.

Abstract: The present invention is directed to a “while-in-use” electrical box device including an electrical box housing and pivotable cover which function as an integral unit and rotate on a fixed frame.

Abstract: The conduit body assembly includes a metallic conduit body having an open upper end and a metallic cover removably positionable over the upper end. A metallic threaded fastener secures the cover to the body. The metallic fastener includes a threaded post and a nut removably attached to one end of the post. The nut and the post are formed of similar non-corrosive materials so as to resist corrosion therebetween. The nut is removable from the post in an environment where corrosion between the metallic fastener and the conduit body and cover prevents removal of the threaded fastener therefrom. Removal of the nut from the threaded post permits removal of the cover from the conduit body.

Abstract: A pipe clamp secures an elongate article such as a pipe to as structural channel. The pipe clamp includes a pair of elongate pipe straps each having one end for securement to the structural channel and an opposed end mutually interconnectable. The opposed end of one of the pipe straps is insertable into an aperture in the opposed end of the other pipe strap. A threaded fastener movably couples the ends to compressively secure the pipe strap to the structural channel about the article.

Abstract: A device may include a power source, two or more lamps for providing light, and a controller. The controller may be configured to periodically select a first combination of one or more of the lamps, provide power from the power source to the first combination of the lamps, select a second combination of one or more of the lamps, and switch the power from the first combination of the lamps to the second combination of the one or more of the lamps after a period of time has elapsed.

Abstract: An integrated ventilation unit configured to provide ventilation and conditioned air to an indoor space may include a heat pump system, an energy recovery device and a control unit. The heat pump system may include a first coil located at a supply air side of the ventilation unit, a second coil located at an exhaust air side of the ventilation unit, and a compressor. The energy recovery device may be configured to transfer heat between a return air stream and a supply air stream and the control unit may be configured to control operation of the heat pump system and the energy recovery device.

Abstract: This invention pertains to an adjustable cover for an electrical outlet box. The cover is configured having a generally planar mounting plate with a collar surrounding an opening through this mounting plate. An extension sleeve moves within this opening and adjacent the collar. At least one fastener is located adjacent the opening and is movable between a locked position and an unlocked position. The fastener operates a locking device that engages wedges against the extension sleeve when the fastener is in the locked position and disengages wedges against the extension sleeve when the fastener is in the unlocked position.

Abstract: One aspect of the present invention includes a cover assembly for a floor box supporting at least one receptacle mounted therein. The assembly comprises at least one cover plate, at least one lid and a lock. The cover plate for at least partially covering the floor box includes at least one lock receiving channel. The at least one lid is pivotally secured to the cover plate for movement between a closed position covering the receptacle and an open position permitting access to the receptacle. The lock retains the lid in the closed position. Also, the lock is disposed at least partially within the channel and moveable between a locking position for retaining the lid in the closed position and at least one release position wherein the lid is not retained by the lock.

Abstract: The wall plate bracket is for a high voltage outlet, and includes a wall plate having front and rear surfaces. The wall plate has an interior opening. A support housing has an inner surface and an interior region bounded by the inner surface. The support housing is connected to the rear surface such that the interior opening provides access to the interior region. The support housing is configured for support of the high voltage outlet within the interior region. A clamp is connected to the wall plate for securing the wall plate to a wall structure. The rear surface of the wall plate may have a rib to limit the clearance between the support housing and rear surface. Alternatively, the clearance may be limited by a recess in the rear surface in which a mounting tab of the support housing is located.

Abstract: A locking device that prevents a rooftop support device from being separated into upper and lower parts is disclosed. The locking device stops the lower base from being fully unscrewed from the upper platform. The device automatically releases to allow the lower base to be screwed back onto the upper platform.

Abstract: A cold shrink assembly includes a first member, a second member and insulating material disposed over the first and second members. The first member may include first and second portions that are coupled together and configured to be separable from each other, where the first and second portions forming a main body having curved portions extending from the main body. The second member may include third and fourth portions that are coupled together and configured to be separable from each other, where the third and fourth portions form a receiving portion located at a second end of the second member. The receiving portion may be configured to secure the curved portions of the first member to the receiving portion when the first and second members are in a first position, and release the curved portions from the receiving portion when the first and second members are in a second position.

Abstract: An electrical connector assembly may include a connector body having a conductor receiving end and first and second connector ends formed substantially perpendicularly to an axial direction of the conductor receiving end. The connector body includes a first axial bore that communicates with each of a second axial bore and a third axial bore in the first and second connector ends, respectively. The electrical connector assembly may include a conductor spade assembly received in the first axial bore, wherein the conductor spade assembly includes a spade portion extending between the second axial bore and the third axial bore. A removeable contact may be received within the second axial bore to conductively engage the spade portion of the conductor spade assembly.

Abstract: A beam clamp includes a clamp base and a rotational portion. The base includes an interior cavity and an external surface. The base and the rotational portion are pivotably connected by a mateable device. The rotational portion extends into the interior cavity of the base and the rotational portion includes a torsion spring.